Automatic sash-closer.



5 O 9 l 4 Y L U J D B T N E T A P N E R U D N A V mm A AUTOMATIC SASH CLOSER.

APPLICATION FILED JAN. 27,1905.

tile 793,862.

lPatented July 4, 1905,

PATENT OFFIC a.

AltlI-IUR (J. VAN DOREN, OF SEATTLE, VVASHING-TON.

MU"lUMATIG SA$H CELOSEHM SPECIFICATION forming part of Letters Patent No. 793,862, dated July 4., 1905.

Application filed January 27; 1905. Serial No. 242,973.

To all Hill/01111 11/; In/(151,1 concern.-

Be it known that I, ARTHUR C. VAN Donner, acitizen of the United States of America, and a resident of the city of Seattle, in the county of King and @tate of l/Vashington, have invented certain new and useful Improvements in Automatic SaslrClosers, of which the following is a specification.

The present invention has for its primary object the production of means for automatically closing a window-sash when subjected to any unusual heat--as, for example, in the event of fire.

A further object is to provide an improvement of this nature which will be simple in construction and positive in operation.

Further objects and advantages will be set forth in the following description and those features of construction upon which i desire protection defined in the appended claims.

in the accompanying drawings, in which like numerals indicate like parts throughout the several views, l1 igure 1 is an exterior elevation of a window provided with my improvement, a portion of the frame being broken away. Fig. 2 is a fragmentary view in perspective, showing the relation of one of the overbalance-weights to the sash-cord and balance-weight therefor. Fig. 3 is a crosssection through one side of the frame and the adjacent portion of the upper sash.

The window-framel and the slidable sashframes 2 are preferably of fireproof construction, being formed of sheet metal, as shown, and in the sides of the frame the usual sashbalauce weights 3 are arranged, the same being connected by cords or chains at, which pass over pulleys 5 to the upper sash. This construction is well known in the art and has merely been introduced to more clearly disclose my improvement. This consists of overbalance-weights 6, secured to the ends of a flexible connection 7, to which a fuse 8 is connected. Catches 9, of yoke form, are secured to the overl')alance-weights, and the weight chains or cords at pass through these catches, so that when the flexible connection 7 is severed by the fusing of fuse 8, thereby allowing the overbalance-Weights 6 to fall, said catches will catch on the sash-weights The force with which the catches of the overbalancc-weights strike the sash-weights will be suflicient to start the upper sash in its elevation, and the combined weight of both sash and overbalancc weights will obviously be sullicient to overcome the weight of the sash, and consequently the upper sash will be automatically closed.

The flexible connection 7, which is preferably a chain or wire rope, passes through suitable apertures, as 9, in the frame 1 and ex tends across the outer face of the upper portion of the window-frame, thereby exposing the fuse 8, so that it will be readily affected by any unusual rise in the tempe 'ature. The apertures 9 are provided with suitable weather-shields 10. ln the construction shown the fuse is arranged on the exterior of the window-frame, so as to close the open sash when lire occurs in an adjoining building. It will be obvious, however, that the fuse could be placed at the inner side of the windowframe and thereby be alfected by any undue rise of the temperature in the building without departing from the spirit of my invention.

My improvement can be readily mounted in the window-frames of the type now in common usage and will not interfere with the operation of the sash in the usual manner.

In the foregoing description and in the drawings I have shown and described a con struction which will carry out the various functions assigned thereto. It is apparent, however, that minor changes can be made in the details of construction, and I therefore reserve the right to make such changes as fall within the scope of the appended claims.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a saslrclosing device, the combination with the window-frame, a sash slidable therein, the sash-balance weights, and the flexible connections between the weights and sash, of overbalauce-weights arranged above the first-named weights, catches secured to the last-named weights and having a sliding engagement with said flexible connections, .[lexible means extending along the exterior of the frame for a portion of its length and extending through apertures in said frame and having its ends connected to the overbalanceweights, and a fusible means connected to the exposed portion of the lastnamed flexible means.

2. In a sashclosing device, the combination With the Window-frame, a sash slidable therein, the sash-Weights, and the flexible connections between the Weights and sash, of overbalance-weights having a sliding connection with said flexible connections, flexible means arranged on the exterior of the Win doW-frame for a portion of its length and extending through apertures in said frame and having its ends connected to the overbalance- Weights, and a fusible means connected to the exposed portion of the last-named means.

Signed at Seattle, WVashington, this 10th day of January, 1905.

ARTHUR O. VAN DOREN Witnesses:

JAMES E. MOILRANY, DOUGLAS 0. CoNovnR. 

